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Muscle: chemistry of contraction.

by: Encyclopaedia Britannica Educational Corporation

Publication date: 1969

Topics: 16mm Film, Educational Film, Muscle contraction

Publisher: Encyclopaedia Britannica Educational Corp.

Digitizing sponsor: Internet Archive

Contributor: Internet Archive

Language: English

Collaborator, Georges R. Maréchal

Describes the internal structure of muscles, showing that actin and myosin are the contractile elements of muscle. Uses a model to explain muscle contraction

Addeddate: 2014-11-06 21:56:53

Boxid: IA1113002

Curatenote: color: Problematic sound: Good synch: Good notes: Red balance is a little high.

Identifier: musclechemistryofcontraction

Lccn: 73704146

Ocr: Muscles. Contract. And. There is movement. And fundamental to movement is the single muscle fiber the basic unit of contraction. When a fiber the voluntary muscle is examined under the light microscope a definite pattern of light and dark stripes or spry actions is observed. During contraction there is an obvious shortening of the entire fiber on more detailed examination however this contraction is seen to be the result of the much finer shortening of the strike action themselves. The substructure is responsible for this movement could not be adequately observed until the development of the electron microscope. Then the complex internal arrangement of the muscle fiber was revealed it was found that the fiber is made up of small substructures fibroids and the five boroughs in turn are composed of still smaller units which were named settlements. Two kinds of filaments could be distinguished relatively thin ones which form the light stripes and relatively think ones which form the dark stripes. This accounts for the stride appearance of the fibro. Examination of the fibro and cross-section showed that they component sentiments form a definite pattern. This pattern is due to the regular a range much of the thick and thin filaments. That think that all months on chemical analysis were found to be composed of the protein. Mild Senate while but then Solomon's are composed of the protein actin. Based on the visual evidence of the electron microscope studies or working model of how the filaments during contraction was constructed. It suggests the During contraction the punishment slide over and past one another. This is the sliding phenomena theory of muscular contraction. The chemical interactions of the think and them for months during contraction has been intensively studied by Dr George Marshall of the University of New that Belgium. The evident part of sliding filament it's quite strong but in order to completely be must have evidence that these filaments can. If they cannot bend. The value whatsoever if. You don't have to test this theory we are making to prevent nations of the same voluntary mass from the first place we are expecting all the chemical plants. The filled up. The. Number of cats including the. Entire phosphates. From the sea good preparation. Speed extract only the Philip many back to. The thick filament beget the mouse. From the tent. Filament big get the act. In the process of extraction and active combine to form a substance called Act. It's a solution effect on my eyes in. Our eyes. Cursed the solution to the war and get a pure to full effect now the question is to know whether this thread can come back. As we know there can be Why do you say we stimulated by electric shock. Noticed this process. Though. Again. No context. The excitement is electric cars to. Be contacted. Me to stimulus. From the muscle itself. So. This experiment so as to think first. Of all the mass. And second that the same purpose from how could this. Because factors which. Was the cause of its complexion. The question now is to find these fact. This. Fraud. Which has been dipped into this in order to truly most of all the components of the muscles. Let us take one of these fundamental. Monkeys funny something. Now. Here. Which have been isolated from the mess. And really try to make contact them one at the time. That's a side first. Thing first fate. That. So I. Think. That's very fine many for faces I must. Not. Know contact. Another substance because women students. Must. Contain a lot of people in type of state. It's going to be forty. That is the key supply which is. Packed. Expect. Fibers the first sort of. The. Patch. Peer. Situation is not quite that simple left so. Besides some other company also need to let us again to the other bands one at the time. Like to cast. Nothing. Different. Complexion. So these experiment called A.T.P.. Need. To contact for a long time do you want what happened to them but with. A description of the chain of events that he's. Calling you on a simple model. Oh. Here we have picked an amen. And amen. I need another. Fixin up men. Act in. Fact. Kristof it up. Inside the structure that. This doctor. We have another man. Picture which presented by these magnets along a phenomenon. And investing most will be have also the I don't know think pass for face. With its. Phosphate. In contact with the phone. To know which you know. If. It will trigger an electrical disturbance. Along. The Selectric a. Pig yes the succession of. Respect each. This contact. The father complexion is furnished by the A.T.P. the last fate of the A.T.P. broken down and the least to bring about the complex. Then at the end of the contact the council removed. Because. The. Site and phosphate added and. Testing. It is that far back. But of cuffs. Things are not so slim. The chemical reaction to the more complex but in a simple way I have little to pay to the basic events speech aka doing the compact and haul the N.O.C. eighty piece used to produce the biscuit eye contact.